$ aq-dixtest -d . mt-he
['./apertium-mt-he.mt-he.dix', './apertium-mt-he.mt.dix', './apertium-mt-he.he.dix']
Traceback (most recent call last):
  File "/home/fran/local/bin/aq-dixtest", line 9, in <module>
    load_entry_point('apertium-quality==0.2', 'console_scripts', 'aq-dixtest')()
  File "/home/fran/local/lib/python3.2/site-packages/apertium_quality-0.2-py3.2.egg/apertium/quality/frontend/dictionary_tester.py", line 18, in main
    ui.start()
  File "/home/fran/local/lib/python3.2/site-packages/apertium_quality-0.2-py3.2.egg/apertium/quality/frontend/__init__.py", line 20, in start
    ret = self.run()
  File "/home/fran/local/lib/python3.2/site-packages/apertium_quality-0.2-py3.2.egg/apertium/quality/testing.py", line 315, in run
    self.get_entries()
  File "/home/fran/local/lib/python3.2/site-packages/apertium_quality-0.2-py3.2.egg/apertium/quality/testing.py", line 299, in get_entries
    self.rules[i].append(DixFile(i).get_entries())
TypeError: 'NoneType' object is not subscriptable